JP6078795B2 - Lock mechanism - Google Patents

Description

  The present disclosure relates to a lock mechanism for holding an item stored in a housing in the housing.

  Various lock mechanisms for fixing the battery cover have been proposed so that the battery cover is not removed when a shock or vibration due to dropping or the like is applied to the housing in a portable device typified by a mobile phone or the like. .

  For example, in Patent Document 1, the battery cover is fixed by holding the lock member in the lock position with a lock spring member.

JP 2003-217536 A

  It is an object of the present disclosure to provide a lock mechanism that can prevent unintentional detachment of the battery cover in the event of a drop or the like and that facilitates the operation of removing the battery cover.

  The lock mechanism according to the present disclosure includes: a housing portion; a housing having a first groove portion and an opening portion outside the housing portion; a lid portion that covers the housing portion and is detachably or removably attached; A lock part having a first protrusion part that fits into the part and a second protrusion part that is inserted into the opening part at the other end, and is disposed in the first groove part. A buffer member that abuts on the second protrusion and is elastically deformable. The lock portion rotates around a rotation axis located between the first protrusion and the second protrusion.

  According to the present disclosure, it is possible to provide a lock mechanism that can prevent unintentional detachment of the battery cover in the case of dropping or the like and facilitate the operation of removing the battery cover.

The perspective view which shows the external appearance which looked at the electronic device in Embodiment 1 from the front side The perspective view which shows the external appearance which looked at the electronic device in Embodiment 1 from the back surface side The disassembled perspective view which looked at the electronic device in Embodiment 1 from the back surface side Schematic diagram of one configuration example of a locking mechanism showing a cross section taken along line AA in FIG. The figure explaining the lock state of the lock mechanism in Embodiment 1 The figure explaining the micro rotation state of the lock part of the lock mechanism in Embodiment 1 The figure explaining lock release operation | movement of the lock mechanism in Embodiment 1 The figure explaining the lock release state of the lock mechanism in Embodiment 1 The figure explaining the state by which the cover part of the lock mechanism in Embodiment 1 was removed. The figure which shows another example (modification A) of a buffer member The figure which shows another example (modification B) of a buffer member The figure which shows another example (modification C) of a buffer member

  Hereinafter, embodiments will be described in detail with reference to the drawings as appropriate. However, more detailed description than necessary may be omitted. For example, detailed descriptions of already well-known matters and repeated descriptions for substantially the same configuration may be omitted. This is to avoid the following description from becoming unnecessarily redundant and to facilitate understanding by those skilled in the art.

  The accompanying drawings and the following description are provided to enable those skilled in the art to fully understand the present disclosure, and are not intended to limit the subject matter described in the claims.

(Embodiment 1)
Hereinafter, an embodiment of the present disclosure will be described with reference to FIGS.

  In the present disclosure, an electronic device including the lock mechanism of the present disclosure will be described as an example.

[1. Constitution]
[1-1. Configuration of electronic equipment]
FIG. 1 is a perspective view showing an external appearance of an electronic device as viewed from the front side. FIG. 2 is a perspective view showing an external appearance of the electronic device as viewed from the back side. FIG. 3 is an exploded perspective view of the electronic device viewed from the back side.

  As shown in FIGS. 1 to 3, the electronic device 1 includes a display unit 14, a battery 51, a circuit board (not shown), etc. in an outer case made up of a front cover 12, a back cover 13, and a lid 2. Contained. The front cover 12 and the back cover 13 are examples of a housing.

  The electronic device 1 includes a display unit 14 at an upper front portion and an operation unit 15 below the display unit 14. The electronic device 1 includes a storage unit 5 that stores the battery 51 below the back surface side, and a cover unit 2 that is detachably or removably attached to the storage unit 5 by holding the storage unit 5. Prepare. The storage part 5 is formed so that the battery 51 can be detachably stored. In addition, the electronic device 1 includes a lock portion 3 that fits (locks) the lid portion 2 with the back cover 13. The back cover 13 is provided with a first groove portion 17 and an opening portion 16 outside the storage portion 5. The battery 51 is an example of an object to be stored in the storage unit 5.

[1-2. Configuration of locking mechanism]
FIG. 4 is a schematic diagram of a configuration example of a lock mechanism showing a cross section taken along line AA in FIG. 2. FIG. 4 shows a locked state in which the battery 51 is housed in the housing portion 5 and the lid portion 2 and the back cover 13 are fitted together by the lock portion 3. As shown in FIG. 4, the lock mechanism according to the first embodiment includes a back cover 13, a lid portion 2, a lock portion 3, and a buffer member 6.

  As shown in FIG. 4, the first groove portion 17 of the back cover 13 is formed outside the storage portion 5 with the wall portion 4 interposed therebetween, and is open to the back surface side (the lid portion 2 side). The opening portion 16 of the back cover 13 is formed outside the first groove portion 17 and opens to the lower side (the lock portion 3 side) of the electronic device 1. The first groove portion 17 and the opening portion 16 are connected inside the back cover 13. In addition, the first groove portion 17 is formed on both sides of the front side (front cover 12 side) and the back side (lid portion 2 side) with respect to the opening 16.

  The lid portion 2 includes a second groove portion 21 that fits with the lock portion 3, and a first contact portion 22 that protrudes in the direction of the buffer member 6 and contacts the buffer member 6.

  The lock portion 3 is formed in a substantially U shape so as to close the opening 16 of the back cover 13. The lock part 3 is provided with a first protrusion 31 fitted at one end to the second groove part 21 of the lid part 2 and a second protrusion 32 inserted at the other end into the opening 16 of the back cover 13. In addition, a rotation shaft 33 is provided between the first projecting portion 31 and the second projecting portion 32 so that both ends thereof are fitted in the recesses of the back cover 13. The first protruding portion 31 extends in the direction of the lid portion 2 and then protrudes in the direction of the back cover 13. The second protruding portion 32 protrudes in the direction of the storage portion 5.

  The buffer member 6 is disposed in the first groove portion 17 provided in the back cover 13, abuts against the abutting portion 22 of the lid portion 2 and the second projecting portion 32 of the lock portion 3, and It arrange | positions in the state compressed and deformed by the pressing force from the 2nd protrusion part 32. FIG. As shown in FIG. 4, the buffer member 6 has a T-shaped cross-sectional shape and includes three insertion portions (a first insertion portion 61, a second insertion portion 62, and a third insertion portion 63). . The first insertion portion 61 is inserted on the front cover 12 side of the first groove portion 17 and comes into contact with the back cover 13. The second insertion portion 62 is located at a position facing the first insertion portion 61, is inserted on the lid portion 2 side of the first groove portion 17, and the contact portion 22 of the lid portion 2 in the first groove portion 17. Abut. The third insertion portion 63 is inserted into the opening 16 and contacts the second protrusion 32 of the lock portion 3 in the opening 16.

  The buffer member 6 is preferably a member that has speed dependency and is elastically deformable so that the reaction force changes depending on the deformation speed. As an example, silicon-based resin and rubber material are applicable.

[2. Operation]
[2.1 Lock state]
FIG. 5 is a diagram for explaining a locked state of the locking mechanism. FIG. 5 is an enlarged view of only the portion of the lock mechanism in FIG.

  The buffer member 6 is compressed and deformed by receiving a force from the abutting portion 22 of the lid portion 2 and the second protruding portion 32 of the lock portion 3. Therefore, in the buffer member 6, a reaction force (arrow F10) toward the lid portion 2 and a reaction force (arrow F20) toward the lock portion 3 are generated. At this time, the buffer member 6 pushes the lid portion 2 upward by the reaction force (arrow F10), so that the second groove portion 21 of the lid portion 2 is fitted to the first projecting portion 31 of the lock portion 3, The lock portion 3 is restricted from rotating in the fitting release direction (clockwise in FIG. 5). Further, the reaction force (arrow F20) of the buffer member 6 pushes back the second protrusion 32 of the lock portion 3 to the right, and the first protrusion 31 is caused by the effect of the rotation shaft 33 of the lock portion 3 (arrow F21). Rotates in the direction of the second groove 21 (arrow F22). Thus, the 1st protrusion part 31 of the lock part 3 rotates to a locking direction (counterclockwise in FIG. 5), and is locked (the 2nd groove part 21 of the cover part 2 and the 1st protrusion of the lock part 3). (Fit with the part 31) is maintained.

[2.2 State when electronic equipment is shocked]
FIG. 6 is a diagram illustrating a state at the moment when the lock unit 3 is slightly rotated in the release direction from the lock position due to an impact such as dropping.

  When the lock portion 3 is slightly rotated in the release direction by an impact such as dropping (arrow F30), the first protrusion 31 of the lock portion 3 pushes down the lid portion 2 (arrow F34). By this movement, the first contact portion 22 of the lid portion 2 compresses the buffer member 6 downward (arrow F35). On the other hand, due to the effect of the rotation shaft 33 of the lock portion 3 (arrow F31), the second protrusion 32 of the lock portion 3 compresses the buffer member 6 in the left direction (arrows F32 and F33).

  Thereafter, as shown in FIG. 5, the buffer member 6 uses the restoring force to push up the contact portion 22 of the lid portion 2 by the reaction force (arrow F <b> 10) and lift the lid portion 2 upward. As a result, the second groove portion 21 of the lid portion 2 is fitted into the first projecting portion 31 of the lock portion 3, and the lock portion 3 is further restricted from rotating in the release direction. Further, due to the restoring force of the buffer member 6, the reaction force (arrow F20) pushes back the second protrusion 32 of the lock portion 3, and the lock portion 3 rotates in the lock direction by the effect of the rotation shaft 33 (arrow F21). (Arrow F22).

[2.3 Unlocked state]
FIG. 7 is a diagram for explaining the unlocking operation of the locking mechanism. FIG. 8 is a diagram illustrating the unlocked state of the lock mechanism. FIG. 9 is a diagram illustrating a state in which the lid portion of the lock mechanism is removed.

  As shown in FIG. 7, when the lid portion 2 is pushed downward (arrow F40), the buffer member 6 is pressed by the contact portion 22 (arrow F41) and is compressed and deformed. Thereby, the fitting of the second groove 21 and the first protrusion 31 is released. Thereafter, as shown in FIG. 8, the lock portion 3 is manually rotated to a position where the lock state is completely released (arrow F42). Due to its nature, the buffer member 6 is easily deformed at a deformation speed by manual operation, and thus the lock portion 3 can be easily rotated to the release position. As a result, as shown in FIG. 9, the lid portion 2 can be removed (arrow F43), and the battery 51 can be taken out from the storage portion 5.

  When storing, the battery 51 is installed in the storage unit 5, the cover unit 2 is covered with the storage unit 5, and then the cover unit 2 is pushed in the direction of the back cover 13, and then the first protrusion of the lock unit 3. The portion 31 is fitted into the second groove portion 21.

[3. Effect etc.]
As described above, the electronic apparatus 1 according to the present embodiment includes the lock mechanism that fits the back cover 13 having the storage unit 5 and the cover unit 2 that covers the storage unit 5 and is detachably or removably attached. .

  The back cover 13 has a first groove portion 17 and an opening portion 16 on the outside of the storage portion 5. The lock part 3 has a first protrusion 31 fitted to the lid part 2 at one end, and a second protrusion 32 inserted into the opening 16 at the other end. It rotates around a rotation shaft 33 located between the second protrusion 32. The buffer member 6 is disposed in the first groove portion 17, abuts against the back cover 13, the lid portion 2, and the second projecting portion 32 of the lock portion 3, and can be elastically deformed. The lid portion 2 includes a second groove portion 21 that fits with the lock portion 3, and a contact portion 22 that extends in the direction of the buffer member 6 and contacts the buffer member 6. Further, the first protrusion 31 of the lock part 3 extends in the direction of the lid 2 and then protrudes in the direction of the back cover 13, and the second protrusion 32 protrudes in the direction of the storage part 5.

  Thereby, the buffer member 6 is pressed by the contact portion 22 and the second projecting portion 32, and the force by which the lid portion 2 is pushed back in the direction of fitting with the protrusion of the lock portion 3 due to the reaction force of the buffer member 6; The locked state can be maintained by a force that pushes back the lock portion in the direction in which the lock portion is rotated in the direction in which the lock portion 2 is fitted. Therefore, it can prevent that the cover part 2 remove | deviates from the back cover 13 which is a housing | casing.

  The buffer member 6 is in contact with the contact portion 22 on the lid portion 2 side of the first groove portion 17. Therefore, the length of the buffer member 6 in the direction of the first groove portion 17 can be secured, a sufficient reaction force can be secured when the buffer member 6 is pressed by the contact portion 22, and the lid portion 2 is pressed. It becomes easy to ensure the amount of displacement of the lid portion 2 required when the buffer member 6 is compressed and deformed to release the fitting between the second groove portion 21 and the first protruding portion 31.

  Further, the buffer member 6 is in contact with the second protrusion 32 at the opening 16. Therefore, the length of the cushioning member 6 in the direction of the opening 16 can be secured, and a sufficient reaction force can be secured when the cushioning member 6 is pressed by the second protrusion 32.

  Further, when an external force is applied in a direction in which the fitting between the second groove portion 21 and the first projecting portion 31 is released, the lock mechanism is buffered by the pressing force from the contact portion 22 and the second projecting portion 32. The member 6 is configured to be compressed and returned to the locked state by the reaction force of the buffer member 6 generated by the compression deformation.

  Thereby, even if the lock portion 3 is rotated in the release direction due to an impact such as dropping, a force is applied so that the lock portion 3 returns to the original lock position, so that the lock state can be maintained. In addition, the shock-absorbing member having speed dependency increases the impact of dropping or the like, and the shock-absorbing member 6 is not easily deformed even when a large rotation speed is applied by the lock portion 3, and the lock portion 3 is released. It is possible to regulate the rotation in the direction.

  Further, the lock mechanism is configured such that when the lid portion 2 is pressed, the buffer member 6 is compressed and deformed, and the fitting between the second groove portion 21 and the first projecting portion 31 is released.

  Thereby, since a buffer member deform | transforms easily by manual operation, the lock part 3 can be easily rotated in an opening direction. Further, by making the buffer member a speed-dependent buffer member, the buffer member is unlikely to be deformed at a large deformation speed due to an impact such as dropping, so that the lock portion 3 can be made difficult to rotate in the release direction.

(Other embodiments)
As described above, the first embodiment has been described as an example of the technique disclosed in the present application. However, the technology in the present disclosure is not limited to this, and can also be applied to embodiments that have been changed, replaced, added, omitted, and the like. Moreover, it is also possible to combine each component demonstrated in the said Embodiment 1, and it can also be set as a new embodiment. Therefore, other embodiments will be exemplified below.

  The buffer member 6 is not limited to the shape described in the first embodiment. FIG. 10 is a diagram illustrating a modification A of the buffer member. As shown in FIG. 10, the buffer member 7 only needs to be in contact with the contact portion 22 of the lid portion 2 and the second protrusion 32 of the lock member. That is, as shown in FIG. 10, the buffer member 7 has an L-shaped cross-sectional shape and includes a second insertion portion 72 and a third insertion portion 73. Similarly to the buffer member 6 of the first embodiment, the second insertion portion 72 is inserted on the lid portion 2 side of the first groove portion 19, and the abutment portion of the lid portion 2 in the first groove portion 19. 22, the third insertion portion 73 is inserted into the opening 16, and contacts the second protrusion 32 of the lock portion 3 in the opening 16. Also in this case, the buffer member 7 is in contact with the contact portion 22 of the lid portion 2 and the second protruding portion 32 of the lock member, and the lock mechanism described in FIGS. 5 to 9 of the first embodiment. The same operation is performed.

  As shown in FIG. 10, the buffer member 7 does not have the first insertion portion 61, and the first groove portion 19 of the back cover 18 is formed on the lid portion 2 side, and on the front cover 12 side. Not formed. Therefore, the buffer member 7 is restricted from securing the length in the direction of the first groove portion as compared with the buffer member 6 of the first embodiment. However, as the lock mechanism described with reference to FIGS. If the amount of displacement of the lid 2 necessary for releasing the reaction force or the locked state can be secured, the shape like the buffer member 7 can be adopted.

  Next, Modification B of the buffer member will be described. FIG. 11 is a diagram illustrating a modified example B of the buffer member. As shown in FIG. 11, the buffer member 8 has an L-shaped cross-sectional shape and includes a first insertion portion 81 and a third insertion portion 83. Then, similarly to the buffer member 6 of the first embodiment, the first insertion portion 81 is inserted on the front cover 12 side of the first groove portion 17, abuts on the back cover 13, and the third insertion portion 83 is , Inserted into the opening 16, and abuts the second protrusion 32 of the lock portion 3 in the opening 16. Also in this case, the buffer member 8 contacts the contact portion 23 of the lid portion 2 and the second protruding portion 32 of the lock member, and is the same as the lock mechanism described in FIGS. 5 to 9 of the first embodiment. Perform the operation.

  As shown in FIG. 11, the buffer member 8 does not have the third insertion portion 63, and is not inserted on the lid portion 2 side of the first groove portion 17. The contact portion 23 of the lid portion 2 is formed longer in the direction of the first groove portion than the contact portion 22 of the first embodiment, and is in contact with the buffer member 8. Therefore, the buffer member 8 is restricted from securing the length in the direction of the first groove portion as compared with the buffer member 6 of the first embodiment, but as the lock mechanism described with reference to FIGS. If the amount of displacement of the lid 2 necessary for releasing the reaction force or the locked state can be secured, the shape like the buffer member 8 can be adopted.

  Next, Modification C of the buffer member will be described. FIG. 12 is a view showing a modification C of the buffer member. As shown in FIG. 12, the buffer member 9 has an I-shaped cross-sectional shape and includes a first insertion portion 91 and a second insertion portion 92. Then, similarly to the buffer member 6 of the first embodiment, the first insertion portion 91 is inserted into the front cover 12 side of the first groove portion 17, contacts the back cover 13, and the second insertion portion 92. Is inserted into the lid portion 2 side of the first groove portion 17 and abuts against the abutment portion 22 of the lid portion 2. Also in this case, the buffer member 9 is in contact with the contact portion 22 of the lid portion 2 and the second protruding portion 34 of the lock member, and the lock mechanism described in FIGS. 5 to 9 of the first embodiment. The same operation is performed.

  As shown in FIG. 12, the buffer member 9 does not have the third insertion portion 63 and is not inserted into the opening 16. The second protrusion 34 of the lock part 3 is formed longer in the direction of the opening 16 than the second protrusion 32 of the first embodiment, and is in contact with the buffer member 9. Therefore, the buffer member 9 is restricted from securing the length in the direction of the opening 16 as compared with the buffer member 6 of the first embodiment. However, the reaction force as the lock mechanism described with reference to FIGS. If it can ensure, the shape like the buffer member 9 can be employ | adopted.

  In addition, since the shape of the buffer members 7, 8, and 9 is simpler than that of the buffer member 6, their manufacture and attachment to the back cover are relatively easy.

  The buffer member may also be used as a waterproof member. In this case, as in the first embodiment shown in FIG. 4, the buffer member 6 fills both the front cover 12 side and the lid portion 2 side of the first groove 17 and fills the opening 16. If so, the waterproof effect is improved.

  In the first embodiment, the rotation shaft 33 is provided in the lock unit 3. However, the lock unit 3 is not necessarily provided with the rotation shaft 33, and the lock unit 3 may be configured to rotate with respect to the back cover 13. That is, if the lock part 3 rotates around the rotation shaft located between the first protrusion 31 provided at one end of the lock part 3 and the second protrusion 32 provided at the other end. Good. For example, the rotation mechanism of the lock unit 3 may be configured by providing the back cover 13 with a rotation shaft and providing a recess that fits into the lock unit 3. Further, the rotation mechanism of the lock portion 3 can also be configured by using the rotation shaft as a separate member and fitting the rotation shaft into the recess provided in the back cover 13 and the recess provided in the lock portion 3.

  The present disclosure is applicable to a device case having a lid structure. Specifically, the present disclosure is applicable to mobile terminals such as POS terminals, mobile phones, and remote controllers.

DESCRIPTION OF SYMBOLS 1 Electronic device 12 Front cover 13, 18 Back cover 16 Opening part 17, 19 1st groove part 2 Lid part 21 2nd groove part 22, 23 Contact part 3 Lock part 31 1st protrusion part 32, 34 2nd Projection part 33 Rotating shaft 4 Wall part 5 Storage part 51 Battery 6, 7, 8, 9 Buffer member 61, 81, 91 First insertion part 62, 72, 92 Second insertion part 63, 73, 83 Third Insertion section

Claims (8)

A housing having a housing and a first groove and an opening on the outside of the housing;
A lid that covers the storage and is detachably or detachably attached to the housing;
A first protrusion fitted into the lid at one end, and a second protrusion inserted into the opening at the other end; the first protrusion and the second protrusion; A lock portion that rotates around a rotation axis located between
A locking mechanism, comprising: a shock-absorbing member that is disposed in the first groove portion, abuts against the housing, the lid portion, and the second projecting portion of the locking portion, and is elastically deformable. The lid portion includes a second groove portion that fits with the lock portion, and a contact portion that extends in the direction of the buffer member and contacts the buffer member,
The first protrusion of the lock portion extends in the direction of the lid, and then protrudes in the direction of the housing, and the second protrusion protrudes in the direction of the storage portion. Item 10. A locking mechanism according to Item 1.   The lock mechanism according to claim 2, wherein the buffer member is in contact with the contact portion on the lid portion side of the first groove portion.   The lock mechanism according to claim 1, wherein the buffer member is in contact with the second protrusion at the opening. The buffer member is compressed and deformed by a pressing force from the contact portion and the second projecting portion,
The lock mechanism according to claim 1, wherein the lid and the housing are locked by a reaction force generated by the compression deformation.   When an external force is applied in a direction in which the fitting between the lid and the first projecting part is released, the buffer member is compressed and deformed by the pressing force from the contact part and the second projecting part, The lock mechanism according to claim 5, wherein the lock mechanism is configured to return to a state in which the second groove and the first protrusion are fitted by a reaction force of the buffer member generated by compressive deformation.   The lock mechanism according to claim 1, wherein the buffer member is configured to be compressed and deformed when the lid is pressed, and the fitting between the lid and the first protrusion is released.   The lock mechanism according to claim 1, wherein an object to be stored in the storage portion is a battery.

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